Quote:
Originally Posted by 07Ninja250
Looking for the best oil to put in the final drive on my 96 Virago. It calls for an 80W GL-4.
I'm a fan of Redline gear oils (MT90 in my car) and picked up a bottle of Redline Lightweight Shockproof gear oil. The description says: "Similar to a 75W140 gear oil, but with the lower internal friction of an SAE 30 motor oil." Their gear oils exceed GL-5 ratings.
Is this going to work ok in my bike? Shockproof doesn't mention anything about hypoid gears. However, Redline's gear oil tech info states the following about their gear oils, which I assume applies to the Shockproof products as well:
The natural lubricity of the polyol esters provide
excellent slipperiness which reduces the sliding friction
in hypoid gears - reducing wear and significantly reducing
temperatures.
Anyone care to help easy my mind?
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Ninja250,
The MTL closely matches the 80W GL-4 gear lube that is being called for and is our recommendation. The ShockProof LightWeight would also perform well in your final drive.
A high offset hypoid ring and pinion would require a GL-5 extreme pressure gear oil and typically is referred to as a Hypoid gear oil. Your final drive doesn't contain a high offset hypoid ring and pinion, the pinion axis isn't offset from the ring gear center line so doesn't impose the extreme pressure requirements on the gear oil so wouldn't require a GL-5 gear oil as confirmed by Yamaha's GL-4 recommendation.
Please feel free to contact with any questions.
Regards, Dave
Red Line Oil